基于DP-Modeler的精细化三维模型构建

倾斜摄影测量自动生产实景三维模型的技术已逐渐发展成熟,且具有效率高、成本低、精度高、操作简单的特点。为使实景三维模型更加精细化、可利用化,本文首先分析了实景三维模型的自动构建方法与流程,主要包括预处理、空中三角测量及三维模型自动生成;然后对三维模型的精细化处理进行了研究,其中包括模型修饰和单体化模型构建,前者主要包括悬浮物删除、道路平整、水面补洞及立面纹理修改等过程,后者主要利用DP-Modeler专业软件进行单体化模型的重构;最后讨论了精细化三维模型在规划、文物保护、不动产登记等方面的具体应用。

Construction of refined 3D model based on DP-Modeler

The technology of automatic production of real 3D model by tilt photogrammetry has been developed and mature gradually, and it has the characteristics of high efficiency, low cost, good accuracy and simple operation. In order to make the real 3D model more refined and available, this paper firstly analyzes the automatic construction methods and processes of the 3D model, including preprocessing, aerial triangulation and 3D model generation. Then, the fine processing of 3D model is studied, including model modification and monomer model construction, the former mainly includes suspension deletion, road leveling, water surface mending and elevation texture modification. The latter mainly uses DP modeler professional software to reconstruct the monomer model. Finally, the specific application of the fine 3D model in planning, cultural relic protection and real estate registration is discussed.